Water quality in Mahopac, New York
Mahopac is in Putnam County. 382 active public water systems serve the county; 41 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Putnam County
100 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| White Sail Condominium W.s. Carmel (t) |
85 | 1 | 0.4 mi | |
| Water Club Condominiums W.s. Carmel (t) |
75 | 0 | 0.7 mi | |
| Chateau Ridge Carmel (t) |
440 | 0 | 0.8 mi | |
| Carmel WD 9 Carmel (t) |
400 | 1 | 0.8 mi | |
| Carmel WD 5 Carmel (t) |
150 | 0 | 0.9 mi | |
| Lake Mahopac Condo Carmel (t) |
75 | 0 | 0.9 mi | |
| Maple Hill Condominium W.s. Carmel (t) |
380 | 0 | 1.3 mi | |
| Society Hill Condominiums W.s. Carmel (t) |
250 | 1 | 1.4 mi | |
| Shore Estates Owners Assoc INC Carmel (t) |
60 | 0 | 1.4 mi | |
| Carmel WD 14 Carmel (t) |
400 | 0 | 1.5 mi | |
| Carmel WD 8 Carmel (t) |
1,000 | 1 | 1.6 mi | |
| Carmel WD 4 Carmel (t) |
450 | 1 | 1.9 mi | |
| Carmel WD 12 Carmel (t) |
300 | 1 | 2.0 mi | |
| Carmel WD 6-Shell Valley Carmel (t) |
200 | 0 | 2.0 mi | |
| Forest Park Homes Carmel (t) |
200 | 0 | 2.1 mi | |
| Yorkview Estates W S INC Carmel (t) |
200 | 1 | 2.4 mi | |
| Hillsdale Estate Carmel (t) |
270 | 0 | 2.5 mi | |
| Carmel WD 3 Carmel (t) |
1,350 | 0 | 2.5 mi | |
| Archer Estates Carmel (t) |
120 | 0 | 2.5 mi | |
| Carmel WD 6-Tomahawk Creek Carmel (t) |
50 | 1 | 2.6 mi | |
| Carmel WD 7 Carmel (t) |
300 | 0 | 2.6 mi | |
| Union Valley Estates Carmel (t) |
273 | 0 | 2.8 mi | |
| West Branch Acres Carmel (t) |
292 | 0 | 2.9 mi | |
| Carpenter Trailer Park Carmel (t) |
100 | 1 | 2.9 mi | |
| Country Hill Estates Carmel (t) |
203 | 0 | 3.0 mi |
Non-community systems in Putnam County (281: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Putnam County, nearest to Mahopac first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision files or the centre of the first town EPA lists the system as serving, from Census Bureau place files.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The New York records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.